Illegal Screen, Back Screen, screener does not give opponent one step

This is an example of an offensive foul for an illegall screen, with the screen being set from directly behind a defensive player. When setting a back screen, the screener must give the defensive player one step to avoid contact. The offensive player setting the back screen here positions himself directly behind the back of the defensive player, without giving that defender the required one step of space. Since the required step is not given by the offensive screener, this is an offensive foul for an illegal screen.